Genotypic Diversity of Theileria orientalis Detected from Cattle Grazing in Kumamoto and Okinawa Prefectures of Japan
スポンサーリンク
概要
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Theileria orientalis is a benign protozoan species that is widely distributed in Japan, yet sometimes causes serious economic losses in the livestock industry. In this study, we conducted a molecular survey based on genes encoding the major piroplasm surface protein (MPSP) and p23 for T. orientalis detected in cattle grazing in southern areas of Japan, consisting of 2 farms in Kumamoto prefecture (Aso and Kuma districts) and 3 farms in Okinawa prefecture (Ishigaki, Iriomote, and Yonaguni Islands). High prevalence rates of T. orientalis infection were shown in all the cattle populations using the diagnostic MPSP- and p23-PCR assays. Phylogenetic analyses revealed 4 MPSP genotypes and 3 p23 genotypes. Furthermore, MPSP genotype-specific PCR methods were developed in this study and wide distributions of 5-district genotypes of T. orientalis were observed for the examined farms. Our results indicate that at least 5 types of T. orientalis exist in Kumamoto and Okinawa prefectures of Japan and that genotype-specific PCR assays are highly applicable for the quarantine of transported cattle and for epidemiological surveys of bovine theileriosis in Japan.
著者
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Igarashi Ikuo
National Research Center For Protozoan Diseases Obihiro University Of Agriculture And Veterinary Med
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MIZUNO Daisuke
National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Me
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KUBOKI Noritaka
National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Me
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Inokuma Hisashi
Department Of Applied Veterinary Medicine Obihiro University Of Agriculture And Veterinary Medicine
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SUGIMOTO Chihiro
Research Center for Zoonosis Control, Hokkaido University
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Yokoyama Naoaki
National Research Center For Protozoan Diseases Obihiro University Of Agriculture And Veterinary Med
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ZAKIMI Satoshi
Okinawa Prefectural Institute of Animal Health
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MATSUMOTO Kotaro
Department of Clinical Veterinary Medicine, Obihiro University of Agriculture and Veterinary Medicine
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MIYAHARA Tokuji
The Chemo-Sero-Therapeutic Research Institute
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OSHIRO Mamoru
Okinawa Prefectural Institute of Animal Health
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KHUKHUU Altangerel
National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine
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UENO Akio
National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine
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SHIRAISHI Takashi
Aso Animal Hygiene Service Center of Kumamoto Prefecture
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KUDO Ryuta
Jonan Animal Hygiene Service Center of Kumamoto Prefecture
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MATSUMOTO Kotaro
Department of Applied Clinical Medicine, Obihiro University of Agriculture and Veterinary Medicine
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SUGIMOTO Chihiro
Research Center for Zoonosis Control, University of Hokkaido
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MIZUNO Daisuke
National Research Center for Protozoan Diseases, Obihiro University of Agriculture and Veterinary Medicine
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